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plasmatherm.com

Claimed by Black Basta · listed 2 years ago

1.5 TB
Data size
7. Customers records
18m
Age
since listed · data leaked

Status timeline

  1. ListedJan 11, 2025
  2. Data leakeddate unknown

At a glance

Group
Black Basta
Status
Data leaked
Country
United States
Sector
Technology
Listed on leak site
Jan 11, 2025
Data size
1.5 TB
Records
7. Customers

About the victim

AI dossier — public-source company profile

Plasma-Therm is a global manufacturer of advanced plasma-processing equipment for the semiconductor industry, founded over 50 years ago (circa 1974). The company specializes in etch, deposition, thermal processing, and plasma dicing systems used in semiconductor packaging, solid-state lighting, MEMS, and renewable energy applications. Headquartered in Saint Petersburg, Florida.

Industry
Semiconductor Equipment Manufacturing
Address
10050 16th Street North, Saint Petersburg, FL 33716, United States
Founded
1974

Attack summary

Severity: critical — Confirmed exfiltration of 1.5 TB including employee PII, customer data, financial records, proprietary engineering/CAD files, and contracts. Data has been published. Impacts a critical infrastructure supplier (semiconductor equipment manufacturer) with significant intellectual property and regulated information exposure.

Black Basta claims to have exfiltrated approximately 1.5 TB of data from Plasma-Therm, including financial records, contracts, NDAs, employee personal data, CAD drawings, R&D materials, HR documents, and customer information. The group has published the data.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Financial data and accounting records
  • Contracts and NDAs
  • Employee personal data and home folders
  • CAD files and technical drawings
  • Human Resources records
  • R&D and engineering documentation
  • Customer data

What the group claims

Plasma-Therm is a prominent global manufacturer specializing in advanced plasma-processing equipment, particularly for the semiconductor industry. Established over 50 years ago, the company provides essential technologies such as etching, deposition, and plasma dicing, which are integral to various applications including semiconductor packaging, solid-state lighting, MEMS (Micro-Electro-Mechanical Systems), and renewable energy.SITE: www.plasmatherm.comADDRESS: 10050 16th Street North Saint Petersburg, FL 33716 United StatesTEL#: +1 (727) 577-4999ALL DATA SIZE: ≈1.5tb+ 1. Financial data, Accounting 2. Contracts, Confidential, NDA’s 3. Home folders, Personal employees data 4. CAD, Projects, Drawings 5. Human Resources 6. R&D, Engeneering 7. Customers data & etc…

Sources

Source

Indexed 2 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Black Basta

Black Basta is a financially motivated ransomware group that emerged in April 2022 and has since compromised approximately 800 organizations worldwide. The group operates as a Ransomware-as-a-Service (RaaS) model with suspected ties to the now-defunct Conti ransomware operation, though their exact country of origin remains unconfirmed by law enforcement agencies. Black Basta primarily gains initial access through phishing campaigns, exploitation of known vulnerabilities, and credential stuffing attacks, subsequently deploying their custom ransomware that employs ChaCha20 encryption algorithm and employs double extortion tactics by exfiltrating sensitive data before encryption and threatening to publish it on their leak site if ransom demands are not met. The group has demonstrated a preference for targeting organizations in the United States, United Kingdom, Germany, Canada, and Italy, with a particular focus on business services, manufacturing, technology, healthcare, and agriculture sectors. Notable victims have included various healthcare systems and manufacturing companies, though specific ransom amounts and high-profile attacks have not been widely disclosed in public law enforcement advisories. As of 2024, Black Basta remains an active threat with continued operations and regular updates to their leak site indicating ongoing compromise activities. The group has been linked to 1,323 public disclosures across our corpus. First observed on a leak site on April 26, 2022; most recent post January 11, 2025. The operation is currently inactive.

Also tracked as: BlackBasta.

Timeline of this disclosure

  • January 11, 2025plasmatherm.com listed by Black Bastaon the group's public leak site
Data size
1.5 TB
Records
7. Customers

Other recent disclosures by Black Basta

Black Basta has been linked to 1,323 public victims on Darkfield. A sample of the most recent:

See the full Black Basta dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,549 disclosures indexed across all operators we track. Geographically, plasmatherm.com is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Black Basta means plasmatherm.com appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on Black Basta's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.